Minolta Di350 Service Manual page 223

FrameMaker Ver.5.5E(PC) Di350 TROUBLESHOOTING
98.12.09
C0650, C0651
Step
1 Is M5 energized?
Select the following functions in this
order: Tech. Rep. Mode → Move-
ment Check → Scanner. Then,
enter an appropriate value in "Abso-
lute Position" or "Relative Position"
and energize M5.
2 Is "C0650" being displayed?
3 Does the voltage across
CN11BCR-1 on BCR and GND
change from DC0V to DC5V when
step 1 is performed a second time
and PC12 is unblocked?
4 Does the voltage across CN1BCR-
26 on BCR and GND change from
DC0V to DC5V when step 3 is per-
formed a second time?
5 Does the voltage across
CN12BCR-1 on BCR and GND
change from DC5V to DC0V when
step 1 is performed a third time and
PC13 is unblocked?
6 Does the voltage across CN1BCR-
27 on BCR and GND change from
DC0V to DC5V when step 5 is per-
formed a second time?
Check Item Result
NO Check various parts for possible
overload and, if they are okay,
change M5, BCR, HGB, UN2, or
PWB-A, in that order.
YES Perform steps 3 and 4.
NO Perform steps 5 and 6.
NO Change PC12.
YES Change HGB, UN2, or PWB-A, in
that order.
NO Change BCR.
NO Change PC13.
YES Change HGB, UN2, or PWB-A, in
that order.
NO Change BCR.
T-36
Action